<?php
class Mwc_SystemPoint_Block_Group_List extends Mage_Adminhtml_Block_Widget_Grid_Container{
    public function __construct(){
        $this->_addButtonLabel = Mage::helper('systempoint')->__('Add New Group Setting');
        parent::__construct();

        $this->_blockGroup = 'systempoint';
        $this->_controller = 'group_list';
        $this->_headerText = Mage::helper('systempoint')->__('Group(s) Setting');
    }
}